Press and hold the on the TV (not the remote). While holding the button, plug the TV back in.

: The process can take roughly 4 to 10 minutes. The TV will restart automatically once finished. Key Considerations

Once you have extracted the complete file from your multi-part RAR archive, follow these steps for a "forced" or manual installation: : Use a FAT32-formatted USB drive.

: If the TV does not recognize the file, re-check that the USB is FAT32 and the file is in the root directory. If it still fails, it may indicate a hardware issue with the mainboard.

models can be difficult to find directly on the main TCL Support site , which often requires contacting their after-sales team to receive a specific link.